Solar thermal heating makes houses up to 67% more energy-efficient than a perfectly optimised building envelope. This is the result of a paper which compared the efficiency of solar thermal systems with building insulations. The study, Read More
After publishing the Memorandum “Minimum Requirements for Installation of Solar Water Heating Systems in Field” in September 2011, India's Ministry of New and Renewable Energy issued a revised version of the guidelines on 25 November 2011. The Solar Read More